10-07-2014 дата публикации
Номер: US20140190362A1
The invention describes a machine for printing material webs (), which comprises a station () for monitoring the printed material web (), 14. A machine for printing material webs () ,{'b': 1', '11', '41', '4, 'which comprises a station (, , ) for monitoring the printed material web (),'}{'b': 1', '11', '41', '4', '3', '1', '3', '4', '2', '12', '4', '2', '12', '4', '3', '13, 'with the station (, , ) for monitoring the material web () comprising a sensor (, .) for monitoring the web () and at least one counter support (, ) for guiding the web (), with at least one counter support (, ) being located on the side of the web () facing away from the sensor (, ),'}characterized in thatdevices are provided with which a pressure difference can be generated and which are installed such that a force results acting upon the web in the direction towards the counter support,{'b': 6', '7', '6', '4', '2', '12', '7', '4', '2', '12, 'comprising a first device, arranged at the side of the web facing the sensor, which generates a pressure, with this device comprising pressurized air jets (, ), with a first pressurized air jet () acting upon the web () upstream from the counter support (, ) and a second pressurized air jet () acting upon the web () downstream from the counter support (, ),'}{'b': '53', 'and/or a second device, arranged at the side of the web facing away from the sensor, which generates a vacuum, with this second device comprising jets () from which air flows can'}{'b': 4', '53', '2', '12', '4, 'be guided out, pressurized and aligned perpendicular to the travel direction (z) of the web (), with the jets () being arranged upstream and downstream from the counter support (, ) in the travel direction of the web ().'}2. A machine according to claim 1 ,characterized in that{'b': 1', '11', '41', '6', '7', '4', '4', '3', '13, 'the first device represents an equipment for providing blow air, which in the area of the station (, , ) shows jets (, ) extruding blow air for monitoring ...
Подробнее